Bump google-github-actions/auth from 0.5.0 to 0.6.0 (#652)

Bumps [google-github-actions/auth](https://github.com/google-github-actions/auth) from 0.5.0 to 0.6.0.
- [Release notes](https://github.com/google-github-actions/auth/releases)
- [Changelog](https://github.com/google-github-actions/auth/blob/main/CHANGELOG.md)
- [Commits](https://github.com/google-github-actions/auth/compare/7a360a247cce1245c1d13bc63d8b2ac927d201c8...8d125895b958610ec414ca4dae010257eaa814d3

)

---
updated-dependencies:
- dependency-name: google-github-actions/auth
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
           version: v0.9.3
 
       - name: Set up Cloud SDK
-        uses: google-github-actions/auth@7a360a247cce1245c1d13bc63d8b2ac927d201c8 #v0.5.0
+        uses: google-github-actions/auth@8d125895b958610ec414ca4dae010257eaa814d3 #v0.5.0
         with:
           workload_identity_provider: 'projects/498091336538/locations/global/workloadIdentityPools/githubactions/providers/sigstore-rekor'
           service_account: 'github-actions-rekor@projectsigstore.iam.gserviceaccount.com'